Vulnerability Bulletins |
CVE-2026-43178 |
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| Affected software | LINUX KERNEL |
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In the Linux kernel, the following vulnerability has been resolved: procfs: fix possible double mmput() in do_procmap_query() When user provides incorrectly sized buffer for build ID for PROCMAP_QUERY we return with -ENAMETOOLONG error. After recent changes this condition happens later, after we unlocked mmap_lock/per-VMA lock and did mmput(), so original goto out is now wrong and will double-mmput() mm_struct. Fix by jumping further to clean up only vm_file and name_buf. |
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Link: |
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| https://nvd.nist.gov/vuln/detail/CVE-2026-43178 | |